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TypeScript | Array push() Method

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  • Difficulty Level : Basic
  • Last Updated : 18 Jun, 2020
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The Array.push() is an inbuilt TypeScript function which is used to append the given element(s) in the last of the array and returns the length of the new array. 
Syntax:

 array.push(element1, ..., elementN)

Parameter: This method accept a single parameter as mentioned above and described below:

  • element1, …, elementN : This parameter is the elements to add to the end of the array.

Return Value: This method returns the length of the new array. 
Below examples illustrate Array push() method in TypeScript:

Example 1: 

JavaScript




<script>
    // Driver code
    var arr = [ 11, 89, 23, 7, 98 ]; 
  
    // use of push() method 
    var val = arr.push(8)
       
    // printing element
    console.log( arr );
</script>

Output: 

[11,89,23,7,98,8]

Example 2: 

JavaScript




<script>
    // Driver code
    var arr = [2, 5, 6, 3, 8, 9]; 
    var val,j=0;
   
    // use of push() method    
    for(j=0; j<4 ; j++){
      var y = arr[j];
      var x = y * j;
      val = arr.push(x);
    }
    // printing element
    console.log( arr );
</script>

Output: 

[2,5,6,3,8,9,0,5,12,9]

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